Improvement in lamps



PAfmNm JAN 3 1871 fness Sintra @anni effin,

Letters Patent No. 110,648, dated January 3, V1871.

IMPROVEMENT IN LAMPS.

The Schedule referred to in these Letters Patent and making part of the `sanas.

To all whom. it may concern Be it known that I, FRANKLI'L; T. Galeras, of Liberty, in the county of Clay and State of Missouri, have invented a new and useful Imprro'wement in Lamps, of which the following is a full, clear, and exact description, lreference being had to the accompanying drawing forming part of this specification, and which represents a sectional elevation. of a lamp constructed in accordance with my improvement.

My invention relates to that description of lamps in which the wick-chamber is supplied with oil orli'uid from a reservoir that is arranged outside of said chamber, or stands detached from it; andl The invention consists in a certain arrangement of au air-supply pipe or passage to the tlame relatively with the oil-reservoir and wick-chamber with its wiektube, in such manner that when the lamp is burningr the air to supply the flame is, in the course of its passage to the burner, made to first descend or pass in a downwardly direction through the oil=reservoir, and afterward to ascend around the wiok-tubeto, the ame.

This arrangementvestablishes a current in which the cold and denser air is made to assume its natural .downward course, keeping the oil in the reservoircool,

and thereby reducing the risk of an explosion, and afterward, as it approaches .the dame, to assume its 'natural upward course of a heated current. Y

Referring to the accompanying drawing- A represents the oi1-reservoir'; and

B, the-air-tnbe or passage arranged to pa'ss downwardly through said reservoir and from thence to or around the wiek-ehamber C from below, and 'up around the wieletube D to the burner E.

Said air-passage maybe furnished withva lid, b, at'

its top, to close it when the lamp is not inuse.'` Y

F is a water-base or stand-for support of the lamp, and which vmay communicate rby suitable orifices with tbe-lower branch of the air-passage B, s'o that while said base serves to give steadiness to the lamp when in A"use, in case of the lamp upsetting, the water will ow out ofsaid base into the air-passage to extinguish the flame.

Said water-chamber F, as also the oil-reservoir A, may each be provided with valves torair-orifices made therein, or in their .screw-caps or filling-nozzles, so

constructed and operating that, while not excluding ah from entering when the lamp is iu an upright position, fluid is prevented from escaping in case of the lamp upsetting.'

The wick-chamber C is supplied with oil from the reservoir Abya tube, G,arrangcd within the lower connecting-brauch of the air-tube `or passage, and provided at its opposite ends with a valve 0r valves that operate toadmit of flow under ordinary conditions, and in an erect position of the lamp, but which close ,the communication between said reservoir and chamber should the lamp be upset; also which, or theA one of them that-controls ingress from the reservoir, closes in case ofan explosion within the wick-chamber, and thereby prevents ignition extending to the oilreservoir.

The arrangement herein described ot' the air-passage B insures, first,- the vdescent of thel cold and heavier air through the oil inthe reservoir, keeping the oil cool, and afterward the ascent of the air under rarefaction' of it by the Haine, thus maintaining a most perfect circulation or current through thellainpa'mlrcontributing alike to its safety and brilliancy or steadiness in burning. l

The same arrangemcutjs applicableto other con structious of lain )s em ilo 7iifta detached wiek-ehruul .i s

ber, as for instance to a students lamp; and which isv adjustable up or down on a vertical rod or post, under lock bya set-screw; and to chandeliers in`which a central oil-reservoir is made to supplyy a series of branch lights arranged around it.

4What is here claimed, and desired to be secured by Letters Patent, is-

The arrangement of tue air-supply tube or passage ,B relatively to the reservoir A and wick-chamber O .or its tube D, whereby thel vincoming air is made rst to descend through the bo'dy of fluid' in the reservoir, and` afterward to ascendiu itsl course or passage to the ame, substantially as specified.

FRANKLIN T. GRMES.

Witnesses FRED. HAYNES, ARTHUR Klamme 

